CM
Catherine Mcdonald — 1920 US Census Record
Model Tree available1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Catherine Mcdonald across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Mcdonald — first a daughter (b.~1900), then head of a 8-person household.
Age 20
b. ~1900
Female
Daughter
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | McDonald |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Bookkeeper |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1900 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Catherine Mcdonald | Daughter | — | 20 | ~1900 |
| Helen Mcdonald | Daughter | — | 18 | ~1902 |
| James Mcdonald | Son | — | 17 | ~1903 |
| Beatrice Mcdonald | Daughter | — | 22 | ~1898 |
| Uncle Cothrine Patrick H | Other | — | 72 | ~1848 |
| Daughter Mcdonald Irene | Other | — | 11 | ~1909 |
| Sister Flaherty Mary F | Other | — | 38 | ~1882 |
| Mcdonald 118 | Head | — | 46 | ~1874 |
Census Appearances
1900
Middlesex, Massachusetts
Daughter, age 2
Middlesex, Massachusetts · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Catherine C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | May |
| Birth Year | 1898 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Middlesex, Massachusetts
Daughter, age 12
Middlesex, Massachusetts · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Daughter, age 20
Middlesex, Massachusetts · implied b. ~1900 — 8 household members
| Surname | McDonald |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Bookkeeper |
| Industry | Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Catherine Mcdonald across 3 US Census years (1900, 1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father James Mcdonald (~0.92 confidence) and mother Mcdonald 118 (~0.92 confidence) and mother Nellie Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Mcdonald
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Mcdonald 118
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Nellie Mcdonald
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Catherine Mcdonald
Daughter · 1920 · age 20 · b. ~1900 · Massachusetts
★ You are viewing this record
Sibling
Helen Mcdonald
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcdonald
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Mcdonald
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu712unit:0358)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Strobel Lillian H Strobel | 1 | Daughter | — | Massachusetts |
| 2 | Valentine John Strobel | 55 | Father-in-law | Farmer | East Prussia |
| 3 | Augusta Strobel | 51 | Mother-in-law | — | East Prussia |
| 4 | Harry Strobel | 15 | Brother-in-law | Sweeper | Massachusetts |
| 5 | Otto Strobel | 13 | Brother-in-law | — | Massachusetts |
| 6 | Lavoie Thomas 136 | 52 | Head | Knitter | Canada |
| 7 | Effie Lavoie | 49 | Wife | — | Canada |
| 8 | Sherberge Severine Lavoie | 27 | Daughter | Seamer | Massachusetts |
| 9 | Beaudette Cecile Lavoie | 9 | Boarder | — | Connecticut |
| 10 | Barrie Edith Lavoie | 21 | Boarder | Sewer | Massachusetts |
| 11 | Bouliard Joseph 124 | 48 | Head | Mule Spinner | Canada |
| 12 | Nellie Bouliard | 43 | Wife | — | Canada |
| 13 | Yvonne Bouliard | 18 | Daughter | Trimmer | New Hampshire |
| 14 | Aurore Bouliard | 17 | Daughter | Seamer | New Hampshire |
| 15 | Boullianne George 124 | 46 | Head | Carpenter | Canada |
| 16 | Adlie Boullianne | 46 | Wife | — | New York |
| 17 | Leonel Boullianne | 16 | Son | Clerk | Massachusetts |
| 18 | Towle Anthony W 120 | 34 | Head | Machinist | Canada |
| 19 | Lillian E Towle | 33 | Wife | — | Scotland |
| 20 | James H Towle | 4 | Son | — | Massachusetts |
| 21 | Dube William J 122 | 34 | Head | Plumber | Maine |
| 22 | Emma Dube | 34 | Wife | — | Canada |
| 23 | Roland Dube | 13 | Son | — | Massachusetts |
| 24 | Maurice Dube | 11 | Son | — | Massachusetts |
| 25 | Mcdonald Nellie A 118 | 46 | Head | — | Massachusetts |
| 26 | Beatrice Mcdonald | 22 | Daughter | Telephone Operator | Massachusetts |
| 27 | Catherine Mcdonald THIS PERSON | 20 | Daughter | Bookkeeper | Massachusetts |
| 28 | Helen Mcdonald | 18 | Daughter | Telephone Operator | Massachusetts |
| 29 | James Mcdonald | 17 | Son | — | Massachusetts |
| 30 | Uncle Cothrine Patrick H | 72 | — | — | Ireland |
| 31 | Sister Flaherty Mary F | 38 | — | Inspector | Massachusetts |
| 32 | Daughter Mcdonald Irene | 11 | — | — | Massachusetts |
| 33 | Bourland Adolph 114 | 45 | Head | Insurance Agt | Canada |
| 34 | Clara Bourland | 44 | Wife | — | Canada |
| 35 | Alfred Bourland | 16 | Son | Operative | Massachusetts |
| 36 | Alice Bourland | 16 | Daughter | Folder | Massachusetts |
| 37 | Clermont Donat 116 | 35 | Head | Blacksmith | Canada |
| 38 | Virginie Clermont | 43 | Wife | — | Canada |
| 39 | Leo Clermont | 10 | Son | — | Massachusetts |
| 40 | Lodger Poirier Richard | 38 | — | Blacksmith | Canada |
| 41 | Boarder Yarlonville Nellie | 46 | — | Footmaker | Canada |
| 42 | Hamers Arthur 100 | 48 | Head | Grocer | Canada |
| 43 | Hermilia Hamers | 44 | Wife | — | Canada |
| 44 | Almire Hamers | 20 | Daughter | — | Massachusetts |
| 45 | Leo Hamers | 18 | Son | Salesman | Massachusetts |
| 46 | Raymond Hamers | 15 | Son | Salesman | Massachusetts |
| 47 | Elahora Hamers | 9 | Daughter | — | Massachusetts |
| 48 | Rita Hamers | 4 | Daughter | — | Massachusetts |
| 49 | Breton Victor 102 | 33 | Head | Carpenter | Canada |
| 50 | Alfreda Breton | 35 | Wife | — | Canada |
Pedigree Summary
Catherine + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)